Which object does NASA plan to design and use to land four astronauts to Mars? enhanced space station
redesigned space probe
improved rover technology
advanced propulsion equipment

5. what might happen if you were to remove all light from the setup after the discs have all become buoyant? describe what you would see. explain why this would occur with relation to cellular processes like respiration. [referring to an ap biology lab in which spinach discs are placed in a sodium bicarbonate solution and exposed to light.]